Question Boot manager in the wrong drive.

[dennisalt]

Put a larger HD in my wife's Mac, so I re-formatted her old one, cloned my HD and upgraded my old laptop with it.

Turns out it wasn't over-full causing slow running as the Apple store claimed, it was failing. So now my laptop is running super slow, and I can't get it to boot on the original drive. I get a blue-screen if the cloned drive isn't in. Cloning also left 693GB un-allocated (unusable?)

This thread seems to be a very similar issue, but it didn't work. No errors, just still won't boot on the orginal drive, I assume I translated something to my system incorrectly (or this wasn't the fix for me).

[SOLVED] - Boot Manager is in another drive | Tom's Hardware Forum

My HD info:

https://imgur.com/no698Ym

View: https://imgur.com/no698Ym


Any recommendations are much appreciated.

 

[TerryLaze]

and I can't get it to boot on the original drive.

Is the original drive in its original place? If you swapped connectors it could have caused this.
If disk 1 in the pic is the original disk then it is listed as the second boot device and bios uses the first boot device to load the boot manager from.
If the bios has the setting you can also just change boot order and that should also fix it.

Cloning also left 693GB un-allocated (unusable?)

You would have to move or delete the 1Gb third partition, then you would be able to extend the main (acer) partition to use the extra space, doing this on a failing drive would take very long and could fail at some point.